An out-of-bounds read vulnerability exists in the Skia graphics libraryshipped in Firefox before 69.0, allowing for the possible leaking ofdata from memory.

- CVE-2019-9812 (sandbox escape)

In Firefox before 69.0, given a compromised sandboxed content processdue to a separate vulnerability, it is possible to escape that sandboxby loading accounts.firefox.com in that process and forcing a log-in toa malicious Firefox Sync account. Preference settings that disable thesandbox are then synchronized to the local machine and the compromisedbrowser would restart without the sandbox if a crash is triggered.

- CVE-2019-11734 (arbitrary code execution)

Several memory safety bugs have been found in Firefox before 69.0. Someof these bugs showed evidence of memory corruption and Mozilla presumesthat with enough effort some of these could be exploited to runarbitrary code.

- CVE-2019-11735 (arbitrary code execution)

Several memory safety bugs have been found in Firefox before 69.0. Someof these bugs showed evidence of memory corruption and Mozilla presumesthat with enough effort some of these could be exploited to runarbitrary code.

- CVE-2019-11737 (access restriction bypass)

In Firefox before 69.0, if a wildcard ('*') is specified for the hostin Content Security Policy (CSP) directives, any port or pathrestriction of the directive will be ignored, leading to CSP directivesnot being properly applied to content.

- CVE-2019-11738 (access restriction bypass)

In Firefox before 69.0, if a Content Security Policy (CSP) directive isdefined that uses a hash-based source that takes the empty string asinput, execution of any javascript: URIs will be allowed. This couldallow for malicious JavaScript content to be run, bypassing CSPpermissions.

- CVE-2019-11740 (arbitrary code execution)

Several memory safety bugs have been found in Firefox before 69.0. Someof these bugs showed evidence of memory corruption and Mozilla presumesthat with enough effort some of these could be exploited to runarbitrary code.

- CVE-2019-11741 (cross-site scripting)

In Firefox before 69.0, a compromised sandboxed content process canperform a Universal Cross-site Scripting (UXSS) attack on content fromany site it can cause to be loaded in the same process. Becauseaddons.mozilla.org and accounts.firefox.com have close ties to theFirefox product, malicious manipulation of these sites within thebrowser can potentially be used to modify a user's Firefoxconfiguration. These two sites will now be isolated into their ownprocess and not allowed to be loaded in a standard content process.

- CVE-2019-11742 (same-origin policy bypass)

A same-origin policy violation can occur in Firefox before 69.0,allowing the theft of cross-origin images through a combination of SVGfilters and a <canvas> element due to an error in how same-originpolicy is applied to cached image content. The resulting same-originpolicy violation could allow for data theft.

- CVE-2019-11743 (information disclosure)

In Firefox before 69.0, navigation events were not fully adhering tothe W3C's "Navigation-Timing Level 2" draft specification in someinstances for the unload event, which restricts access to detailedtiming attributes to only be same-origin. This resulted in potentialcross-origin information exposure of history through timing side-channel attacks.

- CVE-2019-11744 (cross-site scripting)

A security issue has been found in Firefox before 69.0. Some HTMLelements, such as <title> and <textarea>, can contain literal anglebrackets without treating them as markup. It is possible to pass aliteral closing tag to innerHTML on these elements, and subsequentcontent after that will be parsed as if it were outside the tag. Thiscan lead to XSS if a site does not filter user input as strictly forthese elements as it does for other elements.

- CVE-2019-11746 (arbitrary code execution)

A use-after-free vulnerability can occur in Firefox before 69.0 whilemanipulating video elements if the body is freed while still in use.This results in a potentially exploitable crash.

- CVE-2019-11747 (access restriction bypass)

The "Forget about this site" feature in the History pane is intended toremove all saved user data that indicates a user has visited a site.This includes removing any HTTP Strict Transport Security (HSTS)settings received from sites that use it. Due to a bug in Firefoxbefore 69.0, sites on the pre-load list also have their HSTS settingremoved. On the next visit to that site if the user specifies an http:URL rather than secure https: they will not be protected by the pre-loaded HSTS setting. After that visit the site's HSTS setting will berestored.

- CVE-2019-11748 (access restriction bypass)

WebRTC in Firefox before 69.0 will honor persisted permissions given tosites for access to microphone and camera resources even when in athird-party context. In light of recent high profile vulnerabilities inother software, a decision was made to no longer persist thesepermissions. This avoids the possibility of trusted WebRTC resourcesbeing invisibly embedded in web content and abusing permissionspreviously given by users. Users will now be prompted for permissionson each use.

- CVE-2019-11749 (information disclosure)

A vulnerability exists in the WebRTC component of Firefox before 69.0where malicious web content can use probing techniques on thegetUserMedia API using constraints to reveal device properties ofcameras on the system without triggering a user prompt or notification.This allows for the potential fingerprinting of users.

- CVE-2019-11750 (denial of service)

A type confusion vulnerability exists in the Spidermonkey component ofFirefox before 69.0, which results in a non-exploitable crash.

- CVE-2019-11752 (arbitrary code execution)

In Firefox before 69.0, it is possible to delete an IndexedDB key valueand subsequently try to extract it during conversion. This results in ause-after-free and a potentially exploitable crash.